James taylob



1 JAMES TAYLOR, or ANSONIA, connncricur, ASSIGNOR TO THE nine.

I I UNIT D STATES PATENT OFFICE.

TRIOAL SUPPLY COMPANY, OF SAME PLACE.

COATING AND INSULATING WIRE FOR ELECTRICAL PURPOSES.

SPECIFICATION forming part of Letters Patent No. 251,970, dated January 3, 1882.

Application filedNovember 9, 1881. (No specimens.)

To. all whom it may concern:

Be it known that LJAMES TAYLOR, of Ansonia, in the county of New Haven and State of Connecticut, have invented a new Improvement in Ooatin g and Insulating Wire for Elec trical Purposes; and I do hereby declare the following to be a full, clear, and exact description of the same.

This invention relates to an improvement in preparing wire, copper strips, 860., for electrical purposes, the object being to more perfectly insulate the wire or strip than has heretofore been done; and it consists, essentially,in a coating of benzoin applied either directly to the wire or outside of a fibrous coating first placed upon the wire, as more fully hereinafter described. The benzoin with which the insulation or coating is to be made is first dissolved in alcohol in proportions to bring the benzoin into such condition as to be readily applied with abrush or so as to adhere to the wire when drawn through it.

First. To insulate bare wire which is to be wound or braided with a fibrous material, I arrange a bath, which will contain the benzoin, near the machine which is to apply the fibrous material. This machine may beacommon winder or braider. The wire is drawn through the bath, thence immediately through the machine which applies the fibrous material, so that the fibrous material will come in to contact with the coated surface before the benzoin coating shall have hardened, whereby the fibrous material adheres to the coating and is firmly fixed upon the surface of the wire. The benzoin not only makes a most perfect insulator, but serves as the best cement to secure the covering upon the wire.

Second. Insulating wire which has been covered with fibrous material not only to insulate the wire, but to make a perfect water-proof covering: The wire is wound or braided with fibrous material in the usual manner, and then passed through a bath of benzoin. The benzoin fills the interstices of the braiding and coats the surface, so as to render it water-proof and make the most perfectinsulator.

Third. To coat wire which has been covered with fibrous material by braiding or winding,

and in which the covering has been filled with paratfine: In this third use the wire is covered, the covering filled with paraffine and polished in the usual manner; then it is drawn through a bath of benzoin.

In all the processesbf applying the benzoin 5 5 t0 the outside the movement of the wire as it passes from one drum to another should be so slow as to allow the alcohol in which the benzoin is dissolved to evaporate before it reaches the drum on which it is coiled after coming from the bath.

The benzoin coating is improved by applying a sponge saturated with the benzoin to the surface as it passes toward the drum, whichdistributes the benzoin evenly over the surface.

In the use of benzoin as a final coating for wire which has been covered and the coveringv saturated with paraffine the benzoin preparation possesses an advantage over other known coatings from the fact that neither the benzoin or alcohol in which it is dissolved is a solvent of paraffine oranyingredients-asbeeswax-with which paraffine is mixed. Hence the benzoin retains upon the outside all its insulating properties, is flexible, permits the wire to be bent without disturbing the coating, and does not in any degree affect the covering which lies between it and the wire, each of the parts retaining in themselves their own independent properties.

For some uses the simple coating of the surface of the wire with the benzoin is all the-insulation that will be necessary, becausethe benzoin forms a coating upon the outside of the wire so hard as not to be easily broken, and which is a most perfect insulator, but where the wire is to be exposed to any considerable extent the fibrous covering is desirable.

It will be understood that the same benzoin coating is used in the preparation of strips of 0 copper-that is to say, the benzoin is applied directly to the surface of the strip, and the fabric, it required, is laid upon the strip while the benzoin coating is in an adhesive condi-' tion, so as to secure the strip to the copper in 5 the most perfect manner, at the same time insulating the strip.

I do not wish to be understood as broadly poses first coated with a fibrous material, then a'fibrou coveringwcoated with benzoin, substantially as described.

4. Copper wire or strips for electrical purposes first coated with a fibrous material, the fibrous material filled with paraffine, or a composition of which paraffiue forms the base, then finally coated with benzoiu, substantially as and for the purpose described;

JAMES TAYLOR.

Witnesses:

J OSIAH, H. WRITING, JOHN D, BALLOU. 

